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August 21, 2016 10:44 am  #1


rotor interchange?

does anyone know the diff. between 69 and 70 full size rotors? is it just the wheel brgs? need 69 rotors but  parts store says 69 nla but 70 avail

 

August 21, 2016 9:14 pm  #2


Re: rotor interchange?

I looked at www.napaonline.com and they have both the 69 and the 70 rotors.  The 69 rotors are twice the $ compared to the 70s.  Looks like all the over all dimensions are the same, and it seams to me the spindles are the same so the only other variable must be bearing and race size as well as possible the the seal size.

https://www.napaonline.com/napa/en/p/NB_4885522/NB_4885522_0193956237

https://www.napaonline.com/napa/en/p/NB_4885534/NB_4885534_0193967909

 

August 22, 2016 4:01 am  #3


Re: rotor interchange?

If my source is correct the spindle on a 1969 is 1.25" inner, .750" outer. The spindle on a 1970 is, 1.37" inner, and .866" outer.
If the OD and length of the 1969 cups are the same as the 1970 cups then they should fit in the 1970 hub/rotor.   

 

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